Synchronized random bit-generation based on vertical-cavity surface-emitting lasers with optical injection and polarization-rotated feedback

Xue-Han Wang; Tao Deng; Wen-Long Huang; Guang-Qiong Xia; Xi Tang; Zheng-Mao Wu

doi:10.1117/12.2537286

19 November 2019 Synchronized random bit-generation based on vertical-cavity surface-emitting lasers with optical injection and polarization-rotated feedback

Xue-Han Wang, Tao Deng, Wen-Long Huang, Guang-Qiong Xia, Xi Tang, Zheng-Mao Wu

Author Affiliations +

Proceedings Volume 11182, Semiconductor Lasers and Applications IX; 111820U (2019) https://doi.org/10.1117/12.2537286
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

Based on vertical-cavity surface-emitting lasers (VCSELs) with optical injection and polarization-rotated optical feedback, we propose and numerically demonstrate a scheme for generating synchronized random bit sequences (SRBS) for two legal users at different locations. For the scheme, the chaotic signal generated by a driving VCSEL (D-VCSEL) subject to chaotic optical injection are utilized to simultaneously drive two VCSELs (A-VCSEL and B-VCSEL) with polarization-rotated feedback, then the chaotic outputs from A (B)-VCSEL are used as physical entropy sources to generate SRBS. The simulated results show that, the SRBS at a rate up to 400 Gbits/s can be achieved after adopting suitable post-processing method. The security of this scheme can be ensured by a high-quality synchronization between A-VCSEL and B-VCSEL while relatively low-quality synchronization between D-VCSEL and A (B)-VCSEL. Moreover, the BER and the randomness of generated SRBS are also discussed.

Citation Download Citation

Xue-Han Wang, Tao Deng, Wen-Long Huang, Guang-Qiong Xia, Xi Tang, and Zheng-Mao Wu "Synchronized random bit-generation based on vertical-cavity surface-emitting lasers with optical injection and polarization-rotated feedback", Proc. SPIE 11182, Semiconductor Lasers and Applications IX, 111820U (19 November 2019); https://doi.org/10.1117/12.2537286

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